Synchronizing Wireless Charging and Communication Signals
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Solution Overview
Problem
Existing non-contact charging and wireless communication systems interfere with each other due to their proximity in frequency bands, making it difficult to operate both simultaneously without obstruction.
Innovation Solution
A control device that synchronizes non-contact charging and wireless communication control signals to prevent interference, ensuring compatibility between non-contact charging and wireless communication by using a microcomputer to output synchronized control signals for both units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If non-contact charging and wireless communication operate simultaneously using close frequency bands, then both functions can be provided, but they interfere with each other making simultaneous operation difficult
Solution Approach 1:
The control unit alternates between non-contact charging operation and wireless communication operation in periodic time slots. During a first time slot, non-contact charging is performed; during a second time slot, wireless communication is performed. This periodic switching prevents frequency band interference while providing both functions.
Solution Approach 2:
The system dynamically switches operational modes based on timing signals. The control unit changes the operating state of both the non-contact charging unit and wireless communication unit according to synchronized timing, enabling adaptive operation that prevents interference while maintaining both functionalities.
2Use of energy by moving object
If non-contact charging is performed, then battery charging is achieved, but wireless communication is obstructed due to frequency band interference
Solution Approach 1:
The system divides time into periodic slots where non-contact charging operates in the first slot and wireless communication operates in the second slot. This temporal separation ensures that charging does not interfere with communication quality while maintaining both functions effectively.
3Loss of information
If wireless communication is performed, then electronic key communication is achieved, but non-contact charging is obstructed due to frequency band interference
Solution Approach 1:
The control unit schedules wireless communication during a second time slot and non-contact charging during a first time slot. This periodic time-division approach ensures that communication between the electronic key and vehicle proceeds without interference from charging operations, while charging continues during its designated time slot.
4Productivity
If frequency bands for non-contact charging and wireless communication are kept close, then spectrum efficiency is improved, but interference between the two systems occurs
Solution Approach 1:
The system uses periodic time-division multiplexing to separate charging and communication operations into different time slots. This allows the use of close frequency bands for spectrum efficiency while preventing interference through temporal separation of operations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables simultaneous operation of non-contact charging and wireless communication without interference, allowing for seamless compatibility between the two systems.
Implementation Method 1
a non-contact charging device for non-contact charging a portable device
Implementation Method 2
a wireless communication device for communicating with an electronic key to operate an electrical component mounted in a vehicle
Data Source
AI summary
A control device connected to a non-contact charging device for non-contact charging a portable device and a wireless communication device for communicating with an electronic key to operate an electrical component mounted in a vehicle, includes a memory that stores a wireless communication cycle for communication between the electronic key and the wireless communication device, a wireless communication control signal output part that outputs a wireless communication control signal for controlling operation of the wireless communication device, a non-contact charge control signal output part that outputs a non-contact charge control signal for controlling operation of the non-contact charging device, and a synchronizer that synchronizes the wireless communication control signal and the non-contact charge control signal with each other.